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Dortmund 2006 – wissenschaftliches Programm

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T: Teilchenphysik

T 401: QCD Theorie I

T 401.1: Vortrag

Mittwoch, 29. März 2006, 16:20–16:40, HG2-HS2

Probing the Perturbative NLO Parton Evolution in the small–x region — •Cristian Pisano1, M. Glück2, and E. Reya21II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany — 2Institut für Physik, Universität Dortmund, 44221 Dortmund, Germany

A dedicated test of the perturbative QCD NLO parton evolution in the very small–x region is performed. We find a good agreement with recent precision HERA–data for F2p(x,Q2), as well as with the present determination of the curvature of F2p. Characteristically, perturbative QCD evolutions result in a positive curvature which increases as x decreases. Future precision measurements in the very small x–region, x<10−4, could provide a sensitive test of the range of validity of perturbative QCD.

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